Another Look at Interannual to Interdecadal Variations of the East Asian Winter Monsoon: The Northern and Southern Temperature Modes
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This study investigates the causes of interannual-to-interdecadal variability of the East Asian (EA; 0 degrees - 60 degrees N, 100 degrees - 140 degrees E) winter monsoon (EAWM) over the past 50 yr (1957-2006). The winter mean surface air temperature variations are dominated by two distinct principal modes that together account for 74% of the total temperature variance. The two modes have notably different circulation structures and sources of variability. The northern mode, characterized by a westward shift of the EA major trough and enhanced surface pressure over central Siberia, represents a cold winter in the northern EA resulting from cold-air intrusion from central Siberia...
J. Climate, 23, 1495-1512.The article of record as published may be located at http://dx.doi.org/10.1175/2009JCLI3243.1
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